US1561664A

US1561664A - Bread-racking machine

Info

Publication number: US1561664A
Application number: US43376A
Authority: US
Inventors: Rathwell Robert Curtis
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-07-13
Filing date: 1925-07-13
Publication date: 1925-11-17
Anticipated expiration: 1942-11-17

Description

Nov. 17, l925 1,561,664 R. C. RATHWELL BREAD RACKING MACHINE Filed July 13, 1925 1o Sheets-Sht 1 g 2 LVI/ENTUR.

Y a M A TT ORNE YY Nov. 17, l925 v 1,561,664

- R. c. lrArl-lwl-:LL`

BREAD RACKING MACHINE Filed July 13. 1925 A1o sheets-'sheet' g 'LTT Wag-723..

ATTRNEY.

Nov. '17, 1925. I 1,561,664

v R. c. RA'rHwELL.

BREAD RAGKING MACHINE Filed July 15, .192,5 16 sheets-Sheet :s A

INVENTOR.

M am

ATTORNEY.

R. c. RATHWELL l BREAD RAQKING MACHINE` Nov. 17, 192s.

Fiied July 1 3. .1925 1o sheets-sheet 4' A T TORNE Y.

Nav. 17,1925. 6 1,661,664

R. c. RATHWELL BREAD RACK'ING MACHINE rFiled July 15, 1925 1o sheets-sheet s 6 l f1 4i J3 5y .f7

A f /44 73 i IN VEN TOR.

TJ-Lf). l B22467675@ A TTORN Y.

Nav. 17,1925.x 1,561,664 `R. C.^ RATHWELL l BREAD' RACKING MACHINE Filed July 1:5, 192s v1o sheets-sheet 's A TTORNE Y.

Nov. 17I 1925' R. C. RATHWE'LL BREAD RAQKING MACHINE Filed July 13,` .1925

' INVENTOR.

ATTORNEY.

R. C. RATHWELL BREAD RACKING MACHINE Nov.l 17 i925. A

Filed July 13, 1925 10 Sheets-Sheet 9 FD. INVENTOR.

Bjw

ATTURNEY.

Nov. '17, 1925. 1,561,664

R. c. RATHWELL BREAD RACKZINGv MACHINE Filed July 13, 1925 l0 She'ets-Sheet 10 I 7/y 7a INVENTOR.

F- 5- -E E BY A TTORNEY.

Patented Nov. 17, 1925. l

ROBERT CURTIS RATHWELL, Ol' STRATHBOY, ONTARIO, CANADA.

` BBEAD-BACKING HACHINE.

Application tied July 13,

- To all 'whom'z't may; concern.'

Beit known that I, ROBERT CURTIS RATH- wnLL, a. British subject, residing at Strathroy. county' of Middlesex, Province of Ontario, Canada, have invented acertan new and useful Improvement in Bread-Racking Machines, and declarethe following to be a full, clear, and exact-description of the same,

suchas will enable others skilled inthe art to 'which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specifica-tion. 4 4

This invention rela-tes"to a machine for racking bread, shown in theaccompanying drawings and more fparticularly described in the following specification and claims.

The primary object of the invention is to providea machine adapted to receive pans of bread as rapidly as they may be taken from the' oven and to convey the loavesfollowing their automatic removal from the pans-to a portable racking frame having a plurality of shelvesthe machine being capable of adjustment from time to time whereby the several shelves may be loaded with bread until the entire racking frame is filled-it being unnecessary ifor the operator to handle or touch the loaves-thereby insuring the sanitary racking of bread immediately following its delivery from the oven.

Another feature of the invention consists in the means employed to dispose of the pans immediately following the removal of the bread therefrom.

vWith the foregoing and otherobjects in -view which will a pear as'the description proceeds the invention further resides in the combination and arrangement of parts and in the details of constructionv hereinafter described and claimed itbeing understood that.

changes may be made in the precise embodi ment of the invention herein disclosed1 without de `rting from the spiritof the same,

In tli drawings accompanying this specification: A

Figure 1 is a diagrammatic plan-view of the machine located adjacent to a portable bread racking frame-upon the'shelves of. hich loaves of bread are delivered by the machine. c Figure 2 is a diagrammatic end elevation.

naar. smal mi. 43,376.

ofthe machine and racking frame, shown in the` preceding figure.

F1gure3 is a diagrammatic side elevation of the machine.

Figure 4 is a diagrammatic sectional elevation taken on or about line 4-4 of Figure 1, showing the 'driving shaft and mechanism for operating the pusher`- bar.

Figure 5 is a detail showing means for controlling the altitude of the horizontal vertically adjustable conveyor from which Vthebread is forced by the pusher bar onto the racking shelves.

Figure 6 is a fragmentary' perspective view showing the vertically adjustable horizontal conveyor and pusher bar 4actuated by a pair of movable rack vbarsone of which is hown. f

igure is aV ra'gmentary perspective View showing the elevator whereby the brewd delivered from an inclined chute is conveyed .to the horizontal vertically adjustable conveyor from which it is forced upon the shelves -of the racking frame.

Figure 8 is a fragmentary end elevation of the chain elevator and also the conveyor by which the bread is conducted while in `an inverted position to a. tripping means which. reverses the bread that it may slide right side up down a chute onto the tilting blades of thel elevator.

Figure 9 is a perspective view of'a lfragment of the machine showing the conveyor for delivering the pans of bread as they are received from thepven upon a plurality of L-shaped rocking arms which invert the pans upon a pair of weighted tilting arms located directly above a second conveyor that in turn receives the loaves Pof bread as they drop from the pan z-the view also shows the chute which receives lthe inverted pan as it slidesl from the'weighted tilting arms to convey it to the bottom of the machine, out of the way -of the next pan of bread delivered thereto. d

Figure 10 is a detail'view of the-rocking; o

arms which receive and invert the pan breadalso a fragment of the sector operating the same taken on or about line 10-10 of Figures 1, 21 and 2,2.

Fi' 1l is a detail view showing three brea pans, coupled together as n. unit, in an inverted position upon the Weighted tilting arms-shown in cross-section--which receives the pan and when tilted directs it` in Figure 1of the various controllingV mechanism governing the operation of the several parts of the machine, also an electric motor or other'prime mover and a, speed reducing driving connection between the motor and machine.

Figure 13 is a side elevation also diagrammatic in character showing the several clutch mechanisms controlling the respectiver operations of the machine.

Figure 14 is a cross-sectional view through a clutch and cam mechanism, taken on or about line 14e-14 of Figure 13, controlling the conveyor delivering the pans of bread to the L-shaped rocking arms.

Figure 15 is a detail cross-sectional View of a cam and clutch mechanism taken on or about line 1." --15 of Figure 13.

Figure 16 is a detail cross-sectional view of a cam and clutch mechanism taken on or about line 16-16 of Figure 13.

Figure 17 is a fragmentary detail View partly in section showing a slidable key for alternately locking adjacent sprocket wheels to the driving shaft controlling the operation of the elevator.

Figure 18 is an elevation of a handle for manually shifting the sldable key shown in Figure 17 and also indicated in Figure 12 of the drawing.

Figure 191s afragmentary cross-sectional view of one clutch mechanism--which is typical of the others employed.

Figure 20 is a fragmentary detail sectional view through an eccentric controlling the operation ofthe dogs engaging a ratchet cam-See Figure 14.

Figure 21 is a vertical cross-sectional view of a detail of construction taken-on or about line 21-21 of Figure 1, showing a pinion keyed to the shaft of the L-shaped rocker `arms actuated by a sector secured to a Figure 23 is a vertical cross-sectional view` taken through the bevel i gearing slidable upoIr the respective vertical shafts controlling the pusher bar and the horizontal loaf conveyor with which the pusher bar co-ordinates. 1

More

The construction and Aoperation of the machineJ will now be5 more particularly pointed out and explained, like reference characters being used to indicaterthe same parts throughout the various figures of the drawings.

.The prime mover 1 is o rabl connected with the driving shaft 2 t xrou 1 a suitable speed reducin mechanism 3 driving sproc et wheel e connected by a driving chain with a sprocket wheel 5 keyed to the shaft 2-which .in turn actuates a shaft 6 below, through intermeshing gears 7 and 8 keyed to the ends of the respective shafts-see Figures l2 and 13.

Mounted upon the shaft 6 isa sprocket wheel 9 connected by a driving cham with a wheel 10 mounted on a stub shaft fitted with a beveled gear 11 adapted to drive a gear 12 secured to astub shaft on which is mounted a sprocket wheel 13 designed to drive through a chain 13a, a sprocket 14 on the shaft 15 of the chain conveyor 16-see Figures 1, 9 and 22.

The chain conveyor 16 is carried by sprocket wheels 17-1'1 respectively mounted on the ends of a shaft journalled in the frame of the machine at the forward end of the conveyor.

Aligned with the stub shaft vcarrying the sprocket wheel 13, is a like stub shaft on the opposite side of the machine on which is mounted a sprocket wheel '18 'driven by a sprocket chain 13b from a sprocket Wheel 19 on a stub shaft fitted with a pinion 20 in `mesh with a pinion 21 on the shaft 15- see Figures 21 and 22. v

Mounted on the stub shaft adjacent the sprocket gear 18, isasegmental gear 22 in mesh with a pinion- 23 secured on the end of a rock shaft E24-fitted with a plurality of L-shaped rocker arms 25-seeF1gures 9, 10 and 21.

Pivoted respectively to the opposite sides of the frame are a air of

weighted arms

26, 26, and directly eneath lsaid Varms is a transversely movable conveyor 27 driven by a sprocket wheel 28' on the end of one of the conveyor shafts-connected by a sprocket chain with the sprocket wheel 29 on the shaft 30.; actuated by a sector 31 on the shaft 32 in mesh with a gear 33 on the shaft 30. The shaft 32 is drlven by a gear 32 meshing with'a gear 6'* on the shaft 6.

The chain conveyor 16 receives -the pans of bread from the operator as they come from the oven and delivers them upon the L- shaped rocker arms 25 which being rocked by segmental gear 22 inverts the pan P onto the ivoted weighted arms 26, whereupon the lli-shaped rocker arms-being momentarily released from control ofthe segmental gear-return to their initial position unvtil rocked again by the rotation of said gear. vThe bread Lh drops from the inverted ypen tted with a embed. f Parallel'with theupright shaft 65 and extending through onto the conveyor 27 which conducts the loaves while inverted toward an obstruction or ledge 34-'see Figure 8-wliich-forces th'e loaves to roll over-right side uponto. a chute 39-see Figures l, 2, and 8-leadin`g to an lelevator 40 consisting of a pair of sprocket chains 41 carried by wheels 42 on a s aft at the top .of the machine and at the bottom b v sprocket wheels 43 on a shaft 44- on which are mounted two sprocket wheels 45 and 46-see Figures l and 7-connected by a chain drive with sprocket wheels 47 and 48 alternately keyed to the shaft 30-see Figure 1 and 12by a slidable key 49 fitted with a grooved collar 50 into which extends a pin-51 on the` armof a shiftin device 52, by manually operating which the sprocket wheels 47 and 48 may be alternately keyed to the shaft 30.

The shifting device 52 has also a pin 53 extending into a grooved' collar 54 adapted to simultaneously shift the

sectors

31 and 31 on thel shaft 32 that they may alternately mesh with gear 33l on the shaft 30-the purpose of which will hereafter be explained.

The loaves of bread slide from the chute 39 onto'a plurality of tiltable plates or flights 57 weighted at oneend and pivoted to the elevator 40 andas the elevator ascends the flights are tripped byv an. abutment 58 ony the' end of an inclined channel wa 59 supported by the frame of a horizontal7 conveyor 60, that the loaves may slide onto the conveyor 60--the frame of which is vertically slidable onda7pair of posts 61, 61see Figures 1, 2 an Y The flights 57 are provided with shortv hooks 57a on their underside to engage pins 57h carried by the chain to limit the tilting action of the flights when moving in a downward' direction that they may properly function to engage the tripping means 58 when ascending.

The conveyor 60 is moved horizontally in a step by step manner by a sprocket wheel drive 62 mounted on a shaft driven by a beveled gear `63 in turn carried by a. shaft journalled in the bracket frame of the conveyor-see Figures 4 and 6.V The beveled gear 63 meshes with a gear 64, keyed to and slidable upon ayertical shaft-v 65, having a. longitudinal groove 65* in which the key of the gear slides. l

Keyed to the shaftf30-see Figure 12-is' a sprocket wheel 30 fitted with driving chain 30", passing over idler 30 on shaft 32 and idler 30l on shaft 66, drives sprocket Wheel 30 on shaftf30' fitted .with sprocket wheel 30s having chain4 drivin rconnection with sprocket wheel"30*-'see igure 4--driving vertical shaft 65, whereby conveyor 60 is optheV vertically movable orizontal conveyor y6() is a frame of the shaft 66 having a longitudinal groove 66n throughout its length to receive the keys of a pair of mutilated

gears

67, 68, in mesh with a beveled gear 69 mounted on the end 'of a transverse shaft 70 fitted with a pair of

pinions

71, 71, in mesh with

rack bars

72, 72, attached at their forward ends to a pusher bar 73ada-pted to force the loaves of read Lb from the conve oronto the respective shelves of a portable racking frame R' when the conveyor is vertically raised in alignment with the shelves of the latter. The mutilated gears 67, 68, providing a forward and backward movement of the pusher bar through their alternate driving connection with the beveled gear 69 carried by the shaft 70, to which is securedthe pinions 71 in mesh with the rack bars 72, and whereby the pusher bar is actuated in a forward and reverse direction.

To adjust the altitude of the conveyor 6.0

upon a plane with the several shelves of the portable racking frame, a sprocket wheel 74 is jo'urnalled in the frame of the machine and fitted with a chain 75 traveling over a sprocket wheel 74 at the top of the machine the chain being secured at 76 to the con- `veyor frame and when driven by s rocket chain 88 passing over sprocket 89 ra1ses the conveyor 60 in alignment with theseveral shelves of the racking frame. The conveyor 60 isyalso attached at its opposite end to a sprocket chain 75* travelling over sprocket wheels 74" at the top and over sprocket wheel 74 at the base of the machine-see Fi re 4. ,y i

e conveyor 60 is raised through a driving sprocket 7 9,--loosely mounted on a shaft 6 ada ted to be locked in driving relation with t e shaft by a clutch 80, actuated by a controlling cam 81 mounted on the shaft 2, see Figures 1, 12, 13 and 16 :connected by a sprocket chain 82 with the sprocketgear 83 mounted on a stub shaft journaled in a bracket 84 of the frame.

Secured to the stub shaft of the' sprocket wheel 83 is a beveled gear 85 in mesh `with a gear 86 mounted on a, stub shaft fitted `with a sprocket wheel. 87 having a chain drive connection 88 with asprocket wheel 89, keyed to the shaft of the sprocket wheel 74 carryingl the chain 75- for elevating the conveyor; 6O---see Figures 4, 6 and 12.

Mounted on the shafty of the sprocket' wheel 74 is a ratchet wheel 77 engaged by a springactuated pawl carried by a manually operated releasing lever 78-graphically in. i

dicated in Figures 5 and 6--for releasing the conveyor when'raised to its highest altitude that it may descend by gravity to' its initial o r lowermost position 'to be again raised -in' alignment with the respective shelves of the racking frame by ationbfthe driving mechanism.V v

' Referring again to` 'the sprocket wheel 79 the operloosely mounted on the shaft 6-see Figures 13 and 16-is a clutch 80 for locking the sprocket wheel 79 to the shaft, the slidable -memberof the clutch is operated through acontrolling cam 81 co-operating With a bellcrank lever S15-one arm of which traverses a cam groove in the member 81, see Fi ures the controlling cam 81.

An eccentric 81", carried by shaft 81 forming part of train of gears driven by gear 91e on shaft 91 to step up the speed -keyed to the .shaft 30 by the of the parts operated thereby-see Figure 12-actuates an arm 87 engaging the ratchet teeth of cam 81, thereby rotating the latter with its cam way controlling the bellcrank lever 81, thereby operating clutch 80 as described.

Conveyor 27 receives the loaves of bread as they drop from the pan moving forward step by step the width ofa loaf--the motion being controlled by

sectors

31, 31, on shaft 32 and is adjustedfor different size loaves by manually shifting the handle of the controlling device '52 to alternately engage the respective sectors 31, 31a', with the gear 433, on shaft 30. Conveyor 27 being operated through gear 28, driven by sprocket chain from gear 29 on shaft 30, is

therefore actuated by same sector as that l operating conveyor 16.

The elevator 40 is also operated from this device and .has a lgear shiftsee sprocketl wheels 47 and 48 -in Figure 12, alternately sldable key 49- reviously described.

en conveyor 60 is filled with loaves of bread a clutch 90--see Fig. 13is disengaged. This stops the motion of the conveyors 27, and elevator 40. Clutch 91 when enga edy controls the gears o erating the pusher ar 73 which forcesthe oaves of bread from the conveyor 60 onto the shelves of the racking frame Rf, whereupon the pusher bar returns to its initial position through the action of mutilated

gears

67, 68. Clutch 91 is then disengaged and clutch 9 0 engaged, thereby starting in motion the ele-I vator and conveyors.

Clutch 91 when 'engaged locks gear 91 to the shaft 6. Gear 91n drives. gear 91" keyed to Shaft 91-see Figures 12 and 13.

Keyed to shaft 91 is a sprocket gear 91d having -a chain drive connection with gear 66" on shaft- 66 on which is mounted a sprocket Wheel 66a which in turn drives 66 and thereby actuates the shaft 66, which in turn as previously described operates the pusher bar 73.

The pusher bar is actuated twice in pushing the rows of bread 'onto the respective menace shelves of the racking frame. Clutch is then engaged thereby operating the gears and chain hoists which raise the frame of the horizontal conveyor 60 to the next shelf or bread rack, whereupon the delivery of bread to the conveyor and its discharge upon the shelf of the racking frame is repeated.

`When the bread rack has been filled in the manner described the conveyor 60 is released by manually operating the lever 78 whereupon the conveyor descends by gravity to its initial position and another racking frame is moved into position and filled as described. y

The several'operations of this machine are governed by a plurality of clutches 80, 90, 91, 110, mounted on shaft 6, controlled by calns and clutches mounted on shaft 2 abovethe several cams being operated a predetermined degree by eccentric arms adapted to engage a limited number of ratchet teeth provlded in the rim of the cam-member.

The-construction and operation of one of these devices being typical of-.the others .it

willl be unnecessary to describe each in detai. I

The clutches and 91 are adapted to be engaged alternately. A bell crank rocker arm 92 is pivoted at 93 to a bracket 94 bolted 'to the frame. One of the arms of the bell crank is forked as at 95 and tted withI studs extending into a peripheral groove in the clutch t'o shift the latter. l

The other arm 96 preferably terminates in a ball-shaped end 96-see Figures 15 and 19-adapted to traverse a cam-groove 97 in the member 98 loosely mounted on the shaft 2. Slidable on the shaft 2-see Figure 13-is a ratchet faced clutch key', 99 adapted to engage the member 98. An arm 100 is pivoted at one end to the bell crank rocker arm 92 and at its opposite end is loosely connected with the ratchet clutch key 99. The cam is fitted with a limited number of ratchet teeth in two rows, the rows having a relatively different number'of teeth either .of which may be engaged as de sired-in accordance with the degree ofv rotation required--by an arm V101 actuated by an eccentric 102 from the shaft 32--the eccentric arm shifting the controllingcam that the bell crank rocker arm may be actuated through` the cam groovecausing the rocker arm to tilt periodically to release one clutch 'and engage the vother and to release or engage the slidable key on the shaft 2 ioo to lock or release the controlling cam on the shaft as required, y y y Clutch 110 'on shaft 6 controlled. by cam clutch 111 on shaft 2 and eccentric arm 112 on shaft 32 actuating the arms engaging the teeth of the controlling cam 111,

controls they operation of conveyor 16, de-

- room `for the vsecond row. The conveyor` tilting arms 25, inverted thereby onto the

weighted arms

26, 26,-the bread drop ping from the pans ,upon conveyor 27: the

weighted arms

26, 26, tilting under the weight of the pan that itmay slide down

chutes

26, 26,-see Figures 2 and 9-to the floor for manual removal out of the way of the next an of bread placed upon conveyior 16 rom the oven. t I

he conveyor 27 carries the loaves of 'bread forward while still inverted and as they dro onto the ledge or obstruction S34-see y ig. 8-are thereby turned-right side up on slide 39 which delivers them to vthe weighted tilting plates on flights 57 o f elevator 40. vThe elevator flights as they ascend are tripped by an abutment 58 on an inclined channel 59 carried by the frame of the horizontal conveyor (iO-which is adapted for vertical adjustment that it may be brought into alignment with the respective shelves of the racking frame.

A Upon the conveyor 60 receiving its full quota of bread from the elevator the entire row is simultaneously pushed from'the con-- veyor onto the shelf of the racking frame R, with which it may at the time be aligned, by thev pusher bar 73, which .then returns to its initial position through the action ofthe mutilated

ears

67 and 68, alternately in mesh with e gear 69 controlling the forward and backward movement of the rack bars 72-72l secured to the pusher bar-as has been previously described. y

Upon the `conveyor being filled a ain with bread the pusher bar is actuatedfrcing the last row `of loaves from thei'conveyor againsty the first row of the loavesi on the racking framepushing the, latter backwardly upon the shelf and thereby making 60 is thenraised to the next shelf of the racking frame wherieipon the operation 'just described is repea When all of the shelves of the racking' fr frame vare filled, the releasing lever 78- see Figures 5 and 6-is manually operated that the conveyor 60 may descend by gravity to its lowermost or im-tial position. The rackin frame withits load of bread is then wheeley away to be replaced by another racking frame that bread may be loaded therein as described.

Having thus described my invention what I claim is:

1. In combination with a racking frame including a (plurality of shelves; a' machine of the class escribed comprising a conveyor adapted to receive and convey pans of bread L as'receivedfrom an ovenmeans for invertr inge pm of bread diversa t 'am myeyor, whereby the bread may fa from the pans; a second conveyor adapted. to receive the bread as it drops' from the pans; an elevator for receiving the loaves of bread delivered by the second conveyor; .a vertically J with a plurality of arms adapted to receive f the pans delivered b the conveyor; means for actuatin the roch shaft; weighted arms pivoted to t e frame adapted to receive the inverted pans from the rocking arms and tiltable under the weight of the pan; a chute co-ordinating with the tilting arms for conducting the pan out of the wayfof pans subsequently inverted upon the tilting arms; a horizontal conve or toreceive the loaves of bread dropped fiom the pans; an elevator for receiving the,loaves of bread from the horizontal conveyor; a vertically adjustable 'horizontal conveyor to receive the loaves of bread from the elevator adapted to travel in a step by step manner until the' entire `1 h of the conve or is filled with bread t be ore dischar ing t e bread therefrom and Vmeans for pus ing the row of bread from said last named conveyor onto'the racking frame. n w

3. In combination with a racking frame including a lurality of shelves; a machine of the class diiscribed com risin a conveyor adapted to convey pans o brea as received `from an oven; means for yinverting the pans ofbread delivered thereto b the conveyor, whereby the bread may` fall rom the inverted pans onto a conveyor; la horizontal conveyor adapted to receive the inverted bread om the pans; a slide for conducting the bread to an elevator; means for automati- I said last named conveyor onto the racking frame.

.4. In combination with a racking frame includin a plurality of shelves, a machine of the c ass described includ'mgjmeans for inverting pans of bread, wherebythe loaves may drop from the pans, a conveyor adapt- `ed to receive and conduct thebread lto an elevator, means for turning the loaves right side up prior to delivery to the elevator, an

elevator fitted with a plurality of -tiltable liights to receive the loaves; a longitudinal movable vertically adjustable conveyor provided with tripping means adapted to tilt the elevator flights as they ascend in contact therewith, whereby the loaves of bread may slide down the respective flights onto the horizontally movable vertically adjustable conveyor, means governing the horizontal movementof said conveyor in an intermittent step-by-step manner, whereby the loaves of bread may be deposited by the elevator flights side by side upon the conveyor until its total length is covered, and means for simultaneously pushing the entire row of bread onto the respective shelvesfof the racking frame.

5. In combination with a racking Jframe including a plurality of shelves, a machine of the class described including means for inverting pans of bread, whereby the loaves may drop from the pans, a conveyor adapted to receive and conduct the bread' to an elevator, means for turning the loaves rightI side up prior to delivery to the elevator, an elevator fitted with a -plurality of tiltable iights to receive the loaves, a horizontallyl movable vertically adjustable conveyor provided. with tripping means. adapted to tilt the elevator iights as they ascend in contact therewith, whereby the loaves of bread may slide down the res ective'iiights onto the vertically adjustab e horizontal conveyor, means governmg the movement of said conveyor in` an intermittent step by step manner whereby theloaves of bread may be deposited by the elevator iights side by side upon the conveyor until its total length is a covered, and means for automatically pushing said row of loaves from the conveyor onto one, of the shelves of the racking frame and to return-said pushing means to its initial position, whereby when again actuated the succeeding row of loaves pushed from the conveyor will through contact with the row of loaves previously delivered to the racking frame force the latter backwardly upon the shelves making room for the row of loaves last delivered. l

'6. In combination with a racking frame includin a plurality of shelves; a machine of the c ass described includingy means for inverting pans of bread, whereby the loaves may drop while inverted u' n a conveyor,

a conveyor, a. slide adap to receive the loaves from the conveyor provided with an abutment ladapted to cause the bread to roll over ri ht si e up for delivery to an elevator, t e elevator being fitted with a pluralit of tiltable ights adapted to receive the` eaves of bread, whereby they may be elevated to the plane of a horizontal conveyor adjustable to the altitude of the shelves of the racking frame, a horizontally movable, vertically adjustable conveyor fitted with means for tripping the elevator flights as they respectively contact when .Y

racking frame and for automatically returning the pushing means to its initial position.

7. In a machine of the character described; including a conveyor for receiving pansof bread, a rock shaft fitted with a plurality of L-shaped rocking arms adapted to receive the pans of bread from the conveyor, weighted arms pivoted to the frame .of the machine; a pinion fitted to the rock shaft, a segmental gear in mesh with the pinion adapted to intermittently tilt the rocking arms whereb the pans may be inverted upon the weig ted p1voted arms, the Lshaped vrocking arms being adapted to re- 'turn by gravity to their initial posltion when releasedfrom the control of the segmentall gear upon further rotation of-the latter, and t a chute adapted to receive and remove the inverted pans from the weighted arms upon the llatter tilting under the weight of the aus. P 8. Inamachine ofthe character described includinga horizontal conveyor belt adapted to be progressively elevated step by step in alignment with the respective shelves of a racking frame; means for actuating the con- .veyor in a horizontal direction, including a driving gear; a vertical shaft having a longitudinal peripheral groove; agear 1n mesh with the andv slidable throughout .its length; sprocket wheels suitably journaled fitted with a chain attached to the conveyor frame; means for intermittently actuating the sprocket wheel, whereby the conveyor may7 be raised in alignriving gear keyed to said shaft ment withV the several shelves of a racking f frame, and means for releasing 'said conveyor when fully raised, -fr'om operative connection with said elevating means, whereby the conveyor may descend by gravityto its lower initial position.

' 9. In amachine of the character described,

yincluding a vertically adjustable horizontally movable conveyor belt, means for raising said horizontal conveyor in a step by stepllomanner whereby it may be progressively l l aligned withy theiseveral shelves of a rac frame, means adapted' tomove said belt horlered t ereto until cove by a row of loaves .126 zontally ina ste by step manner while re- -ceivin loaves obread rogressively delivf the horizontal lconveyor onto the re- Vspective. shelvesv of a racking frame, comprising a pusher bar adapted to bear simultaneously against all of the loaves'; rack bars secured .to the pusher bar; a shaft suitabl journaled fitted With pinions in mesh Wit the rack bars; a gear. mounted on the end of said shaft; a vertical shaft having a lonf gitudinal groove throughout its length; a pair of mutilated gears slidable'upon said shaft and keyed thereto-the teeth of the respective ears being adapted to alternately mesh wit the gear on the end of said first named shaft, whereby the pusher bar may be driven forward and then returned to-its initial Bosition following the discharge Vof the bread upon shelves of the racking frame and means for actuating said vertical shyt. l0. In combination with a racking frame including a pluralityof shelves; a machine of the Aclass ldescribed comprising a .con-

i veyor adapted to' receive and convey pans of fao \ to travel in a step by step manner until the bread as received from an oven; means for inverting the pans of bread `delivered by the conveyor, whereby the'bread may fall from the pans; a second conveyor adapted to receive the bread as it drops from the ans; an elevator for receiving the loaves of read delivered by the second conveyor; a vertically adjustable horizontal conveyor adapted tov receive the bread from.` the elevator and i entire length of the conveyor is filled with bread; a prime mover; means driven by the prlme mover for actuating the several conveyors; elevator and loaf pusher mecha-v ynlsm; a ,plurality of-clutches respectively adapted to engage'fand release the several tuated by the cams for engaging and releasing theclutches, and a plurality of eccentri'cs fitted with arms engaging the ratchet teeth of the respective vcams1 whereby the timing cams may be actuated to engage or release the clutches that the several conveyors, elevator and loaf pusher in proper sequence.

11. In ama'chine of the character described a horizontally movable vertically adjustable conveyor, an elevator iitted with a plurality of weighted tiltable flights adapted to receive and elevate leaves of bread to said conveyor, "means carried by the rconve or adapted to tilt the elevatorflights ast e come successively in contact `therevvit through the operation of the'elevator, whereby the loaves of bread may slide down the 4flights ontoithe conveyor, and means for limiting the tilting action of said flights.l

In testimony whereof; I sign this specifi-I cation.

may function l ROBERT CURTIS 1aMirvvnnn.V a.